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Rhenium
Rhenium

Technetium
Technetium



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Rhenium
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Technetium

Rhenium Technetium Comparison

1 Periodic Table
1.1 Symbol
Re
Tc
1.2 Group Number
77
Gadolinium Metal
0 17
1.3 Period Number
65
Lithium Metal
2 7
1.4 Block
d block
d block
1.5 Element Family
Transition Metal
Transition Metal
1.6 CAS Number
74401557440268
Aluminium Metal
7429905 54386242
2.3 Space Group Name
P63/mmc
P63/mmc
2.4 Space Group Number
194.00194.00
Plutonium Metal
11 229
4 Facts
4.1 Interesting Facts
  • Chemical properties of Rhenium are similar to Manganese.
  • Rhenium metal is created while refining Molybdenum.
  • Original name of Technetium was Masurium.
  • At the time of its discovery it found in sample of Molybdenum.
4.2 Sources
Found in Minerals, Mining, Ores of Minerals
Made by Bombarding Molybdenum with Deuterons
4.3 History
4.3.1 Who Discovered
Masataka Ogawa
Emilio Segrè and Carlo Perriero
4.3.2 Discovery
In 1908
In 1937
4.4 Abundance
4.4.1 Abundance In Universe
2 * 10-8 %NA
Thallium Metal
5E-09 0.11
4.5.1 Abundance In Sun
~0.00000001 %~-9999 %
Beryllium Metal
1E-08 0.1
4.5.2 Abundance In Meteorites
0.00 %NA
Gold Metal
1.7E-07 22
4.7.2 Abundance In Earth's Crust
0.00 %NA
Radium Metal
9.9E-12 8.1
4.7.4 Abundance In Oceans
0.00 %NA
Protactinium Metal
2E-23 1.1
4.7.6 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
5 Uses
5.1 Uses & Benefits
  • Alloys of Rhenium are used as an electric contact material. It can resist withstand arc corrosion.
  • Its catalysts are used in hydrogenation of fine chemicals. Its Alloy with nickel is used to produce turbine blades.
  • Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
5.2.1 Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
NA
5.2.2 Medical Uses
NA
NA
5.2.3 Other Uses
Alloys
Alloys, Nuclear Research, Research Purposes
5.3 Biological Properties
5.3.1 Toxicity
Low Toxic
Low Toxic
5.3.2 Present in Human Body
5.3.3 In Blood
NA0.00 Blood/mg dm-3
Plutonium Metal
0 1970
5.3.4 In Bone
NA0.00 p.p.m.
Plutonium Metal
0 170000
6 Physical
6.1 Melting Point
3,180.00 °C2,200.00 °C
Francium Metal
27 3410
7.3 Boiling Point
5,627.00 °C4,877.00 °C
Flerovium Metal
147 5660
7.5 Appearance
7.5.1 Physical State
Solid
Solid
7.5.2 Color
Silvery Gray
Shiny Gray
7.5.3 Luster
Metallic
NA
7.6 Hardness
7.6.1 Mohs Hardness
7.00NA
Cesium Metal
0.2 8.5
7.6.3 Brinell Hardness
1,320.00 MPaNA
Cesium Metal
0.14 3490
7.6.5 Vickers Hardness
1,350.00 MPaNA
Palladium Metal
121 3430
7.7 Speed of Sound
4,700.00 m/s16,200.00 m/s
Thallium Metal
818 16200
7.8 Optical Properties
7.8.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
7.8.2 Reflectivity
NANA
Molybdenum Metal
58 97
7.10 Allotropes
7.10.1 α Allotropes
Not Available
Not Available
7.10.2 β Allotropes
Not Available
Not Available
7.10.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
Re
Tc
8.2 Isotopes
8.2.1 Known Isotopes
3318
Tennessine Metal
0 38
8.4 Electronegativity
8.4.1 Pauling Electronegativity
1.901.90
Francium Metal
0.7 2.54
8.4.3 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
8.4.5 Allred Rochow Electronegativity
1.461.36
Cesium Metal
0.86 1.82
8.4.7 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
8.4.9 Allen Electronegativity
1.601.51
Cesium Metal
0.659 2.7
8.5 Electropositivity
8.5.1 Pauling Electropositivity
2.102.10
Gold Metal
1.46 3.3
8.6 Ionization Energies
8.6.1 1st Energy Level
760.00 kJ/mol702.00 kJ/mol
Cesium Metal
375.7 26130
8.6.3 2nd Energy Level
1,260.00 kJ/mol1,470.00 kJ/mol
Ruthenium Metal
710.2162 28750
8.6.5 3rd Energy Level
2,510.00 kJ/mol2,850.00 kJ/mol
Osmium Metal
1600 34230
8.6.7 4th Energy Level
3,640.00 kJ/molNA
Thorium Metal
2780 37066
8.6.8 5th Energy Level
NANA
Dubnium Metal
4305.2 97510
8.6.10 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
8.6.12 7th Energy level
NANA
Bohrium Metal
7226.8 114300
8.6.14 8th Energy Level
NANA
Hassium Metal
8857.4 125300
8.6.16 9th Energy Level
NANA
Yttrium Metal
14110 134700
8.6.18 10th Energy Level
NANA
Strontium Metal
17100 144300
8.6.20 11th Energy Level
NANA
Yttrium Metal
19900 169988
8.6.22 12th Energy Level
NANA
Molybdenum Metal
22219 189368
8.6.24 13th Energy Level
NANA
Molybdenum Metal
26930 76015
8.6.26 14th Energy Level
NANA
Molybdenum Metal
29196 86450
8.6.28 15th Energy Level
NANA
Manganese Metal
41987 97510
8.6.31 16th Energy Level
NANA
Iron Metal
47206 109480
8.6.33 17th Energy Level
NANA
Cobalt Metal
52737 122200
8.6.34 18th Energy Level
NANA
Nickel Metal
58570 134810
8.6.36 19th Energy Level
NANA
Copper Metal
64702 148700
8.6.38 20th Energy Level
NANA
Molybdenum Metal
80400 171200
8.6.40 21st Energy Level
NANA
Molybdenum Metal
87000 179100
8.6.42 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
8.6.44 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
8.6.46 24th Energy Level
NANA
Molybdenum Metal
104400 195200
8.7.1 25th Energy Level
NANA
Molybdenum Metal
121900 121900
8.7.2 26th Energy Level
NANA
Molybdenum Metal
127700 127700
8.8.1 27th Energy Level
NANA
Molybdenum Metal
133800 133800
8.8.2 28th Energy Level
NANA
Molybdenum Metal
139800 139800
9.1.1 29th Energy Level
NANA
Molybdenum Metal
148100 148100
9.1.2 30th Energy Level
NANA
Molybdenum Metal
154500 154500
9.5 Electrochemical Equivalent
0.99 g/amp-hr0.52 g/amp-hr
Beryllium Metal
0.16812 8.3209
9.6 Electron Work Function
4.96 eVNA
Cesium Metal
2.14 5.65
9.7 Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
10 Atomic
10.1 Atomic Number
7543
Lithium Metal
3 117
10.2 Electron Configuration
[Xe] 4f14 5d5 6s2
[Kr] 4d5 5s2
10.3 Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
10.3.1 Crystal Lattice
10.4 Atom
10.4.1 Number of Protons
7543
Lithium Metal
3 117
10.5.3 Number of Neutrons
11155
Lithium Metal
4 184
10.5.5 Number of Electrons
7543
Lithium Metal
3 117
10.7 Radius of an Atom
10.7.1 Atomic Radius
137.00 pm136.00 pm
Beryllium Metal
112 265
10.8.1 Covalent Radius
151.00 pm147.00 pm
Beryllium Metal
96 260
10.8.2 Van der Waals Radius
200.00 pm200.00 pm
Zinc Metal
139 348
10.11 Atomic Weight
186.21 amu98.00 amu
Lithium Metal
6.94 294
10.13 Atomic Volume
8.85 cm3/mol8.50 cm3/mol
Manganese Metal
1.39 71.07
10.16 Adjacent Atomic Numbers
10.16.1 Previous Element
10.16.2 Next Element
10.17 Valence Electron Potential
180.00 (-eV)180.00 (-eV)
Francium Metal
8 392.42
11.2 Lattice Constant
276.10 pm273.50 pm
Beryllium Metal
228.58 891.25
11.3 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
11.4 Lattice C/A Ratio
1.621.60
Beryllium Metal
1.567 1.886
12 Mechanical
12.1 Density
12.1.1 Density At Room Temperature
21.02 g/cm311.00 g/cm3
Lithium Metal
0.534 40.7
12.2.1 Density When Liquid (at m.p.)
18.90 g/cm3NA
Lithium Metal
0.512 20
12.4 Tensile Strength
1,070.00 MPaNA
Indium Metal
2.5 11000
12.5 Viscosity
NANA
Mercury Metal
0.001526 0.001526
12.7 Vapor Pressure
12.7.1 Vapor Pressure at 1000 K
NANA
Cerium Metal
2.47E-11 121
12.7.3 Vapor Pressure at 2000 K
0.00 (Pa)NA
Tungsten Metal
2.62E-10 774
12.8 Elasticity properties
12.8.1 Shear Modulus
178.00 GPaNA
Potassium Metal
1.3 222
12.8.3 Bulk Modulus
370.00 GPaNA
Cesium Metal
1.6 462
12.9.1 Young's Modulus
463.00 GPaNA
Cesium Metal
1.7 528
13.2 Poisson Ratio
0.30NA
Beryllium Metal
0.032 0.47
13.3 Other Mechanical Properties
Ductile, Malleable
NA
14 Magnetic
14.1 Magnetic Characteristics
14.1.1 Specific Gravity
21.0211.50
Lithium Metal
0.53 4500
14.1.3 Magnetic Ordering
Paramagnetic
Paramagnetic
14.1.4 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
14.2.3 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
14.3 Electrical Properties
14.3.1 Electrical Property
Conductor
Conductor
14.3.2 Resistivity
193.00 nΩ·m200.00 nΩ·m
Thallium Metal
0.18 961
14.3.4 Electrical Conductivity
0.05 106/cm Ω0.07 106/cm Ω
Plutonium Metal
0.00666 0.63
15.1.1 Electron Affinity
14.50 kJ/mol53.00 kJ/mol
Mercury Metal
0 222.8
16 Thermal
16.1 Specific Heat
0.13 J/(kg K)0.21 J/(kg K)
Americium Metal
0.11 3.6
16.3 Molar Heat Capacity
25.48 J/mol·K24.27 J/mol·K
Beryllium Metal
16.443 62.7
16.5 Thermal Conductivity
48.00 W/m·K50.60 W/m·K
Neptunium Metal
6.3 429
16.7 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
16.9 Thermal Expansion
6.20 µm/(m·K)7.10 µm/(m·K)
Tungsten Metal
4.5 97
16.10 Enthalpy
16.10.1 Enthalpy of Vaporization
707.10 kJ/mol660.00 kJ/mol
Zinc Metal
7.32 799.1
16.10.3 Enthalpy of Fusion
33.05 kJ/mol23.01 kJ/mol
Cesium Metal
2.1 35.23
16.10.4 Enthalpy of Atomization
791.00 kJ/mol649.00 kJ/mol
Mercury Metal
61.5 837
16.12 Standard Molar Entropy
36.90 J/mol.K181.10 J/mol.K
Beryllium Metal
9.5 198.1